Complex microbial inoculant for straw compost maturity and european corn borer prevention, as well as preparation and application of complex microbial inoculant

Abstract

The invention discloses a complex microbial inoculant for straw compost maturity and european corn borer prevention, as well as preparation and application of the complex microbial inoculant. The complex microbial inoculant comprises a mixed strain and an additive, wherein the mixed strain comprises trichoderma harzianum, bacillus licheniformis and beauveria bassiana, and is prepared by the following steps: inoculating three bacterial strain test tube slant culture media subjected to purification and rejuvenation to corresponding fluid nutrient media respectively, performing fermentation to obtain liquid strains, inoculating the three fermented fluid strains into a solid culture medium, culturing for 48-72h at the temperature being 28-30 DEG C, dying, and crushing; the additive comprises glucose, superphosphate and humic acid; the mixed strain and the additive are mixed according to a mass ratio being (2.0-8.0):1.0 so as to obtain the complex microbial inoculant. The mixed strain and the additive are mixed so as to play a relatively good synergy role; the complex microbial inoculant has the capabilities of increasing the speed of straw compost maturity, killing european corn borer larvae and pupae, reducing the incidence of european corn borer, reducing the harm, improving granhle soil structures, increasing the fertilizer utilization rate and playing a yield increasing role.

Description

technical field

[0001] The invention relates to a composite bacterial agent in the technical field of microbes, in particular to a composite bacterial agent capable of preventing and controlling corn borer and its preparation and application method, which is used for returning straw to the field and accelerating straw maturity. Background technique

[0002] my country is a large agricultural country with a large quantity and variety of crop straws and abundant straw resources. During the development of modern agriculture, agricultural producers have gradually become indifferent to the recycling of organic waste, and a large amount of straw has been burned, which not only causes waste of resources, but also brings adverse effects on the ecological environment. According to statistics, the theoretical resource of crop straws in China is 820 million tons, which means that the utilization potential of straw resources in our country is huge.

[0003] After the straw is returned ...

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